j-byg.dk

Records from scan: 2026-10-19 09:33:56 · 5033ms total · last checked 2026-10-22 23:28 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

j-byg.dk is a .dk domain served by 3 nameservers (ns1.scf.dk, ns2.scf.dk, ns3.scf.dk). It was registered on 21 May 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by outlook.cloud-mail.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 34ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.scf.dk	80.208.56.222	outlook.saass.dk	AS44869 FIBIA P/S
ns2.scf.dk	5.103.184.171	outlook.cloud-mail.dk	AS44869 FIBIA P/S
ns3.scf.dk	5.103.12.92	5.103.12.92.static.fibianet.dk	AS44869 FIBIA P/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	outlook.cloud-mail.dk	5.103.184.171	outlook.cloud-mail.dk	AS44869 FIBIA P/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 2062ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	outlook.cloud-mail.dk

📝 TXT Records#

1 records 2472ms

TXT Record
v=spf1 ip4:5.103.12.90/32 ip4:5.103.12.91/32 ip4:80.208.56.222/32 a:outlook.cloud-mail.dk -all

✉️ SPF#

Policy	Record (j-byg.dk)
-all (hard fail)	v=spf1 ip4:5.103.12.90/32 ip4:5.103.12.91/32 ip4:80.208.56.222/32 a:outlook.cloud-mail.dk -all

📨 DMARC#

Policy	Record (_dmarc.j-byg.dk)
p=quarantine	v=DMARC1;p=quarantine;sp=reject;pct=100;ruf=mailto:hostmaster@saass.dk

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-19 09:33:56

www	NXDOMAIN
www vs bare domain	Neither resolves j-byg.dk: no address www.j-byg.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

67ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

54ms

Field	Value
Serial	13
Primary NS (MNAME)	ns1.scf.dk
Responsible (RNAME)	hostmaster
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-17 05:08:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-05-21
Expires	2027-05-20 (208d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
cloud-mail.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

2023ms

57ms

AAAA

33ms

TXT

2472ms

CAA

40ms

HTTPS

45ms

TLSA

2362ms

SOA

54ms

MTA-STS

58ms

DNSSEC

67ms

SRV

2062ms

Total

5033ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 09:33:56 shown	5033ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-12 01:57:55	2989ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-11 01:08:21	7070ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-07 19:53:02	2969ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-06 19:51:19	2621ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-05 16:32:38	1841ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-04 16:29:35	6341ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-30 16:03:32	2963ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-29 15:50:56	2925ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-27 15:34:15	3025ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-25 15:13:22	5472ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-23 14:21:56	9621ms	3 NS 0 A 0 MX	🔓 Insecure
2026-09-20 14:55:23	4944ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-04 19:52:59	7478ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-29 07:45:39	6459ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-25 11:17:44	8352ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-24 18:16:18	10219ms	3 NS 0 A 1 MX	❓ Unknown
2026-08-22 13:37:44	13426ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-19 08:56:46	10457ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-16 04:02:16	8696ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-14 22:04:04	8007ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-09 15:28:52	10953ms	3 NS 0 A 1 MX	🔓 Insecure
2026-07-27 16:11:23	3884ms	3 NS 0 A 1 MX	🔓 Insecure
2026-07-26 16:00:45	16423ms	3 NS 0 A 1 MX	🔓 Insecure
2026-07-22 08:16:39	10590ms	3 NS 0 A 1 MX	🔓 Insecure